Nicholas Perri is an American musician, singer, songwriter, and producer. He is frontman for Philadelphia rock group Nick Perri & The Underground Thieves, as well as founding member of previous groups Silvertide, Mount Holly, and SINAI. Perri has also played for Perry Farrell, Matt Sorum, younger sister Christina Perri, Jimmy Gnecco, Shinedown, Dorothy, and others.

Silvertide is an American rock band from Philadelphia, Pennsylvania.